bids are invited for dispersal light and covered drains carrying out topographical survey of approx 150 mtr into 400 mtr 60000sqm area including setting up - carrying out topographical survey of approx 150 mtr into 400 mtr 60000sqm area including setting up benchmark on structure with dgps instrument , providing contour plan with 0 point 5 mtr contour interval grid and submission of contour plan - providing contour plan with 0 point 5 mtr contour interval grid and submission of contour plan in soft as well as hard copy complete as per specification , preparation of design of drain alongwith the edges of proposed dispersal approx 700 mtr calculation of drain size ground leve - preparation of design of drain alongwith the edges of proposed dispersal approx 700 mtr calculation of drain size ground level and invert level and submission of report in soft as well as hard copy complete , preparation of design and drawing of rcc culvert along the drain across - preparation of design and drawing of rcc culvert along the drain across the link two nos for passing of drain , preparation of architecture and structure drawings of culvert and submission of drawing - preparation of architecture and structure drawings of culvert and submission of drawing in soft as well as hard copy complete total quantity : 5